US 12,234,559 B2
Electrode material for aluminum electrolytic capacitors and method for producing same
Toshifumi Taira, Osaka (JP); Kazuya Fujimoto, Osaka (JP); Shinya Sone, Osaka (JP); Katsumi Nakashima, Osaka (JP); and Ken Wada, Osaka (JP)
Assigned to TOYO ALUMINIUM KABUSHIKI KAISHA, Osaka (JP)
Appl. No. 18/275,835
Filed by TOYO ALUMINIUM KABUSHIKI KAISHA, Osaka (JP)
PCT Filed Jan. 26, 2022, PCT No. PCT/JP2022/002945
§ 371(c)(1), (2) Date Aug. 4, 2023,
PCT Pub. No. WO2022/168712, PCT Pub. Date Aug. 11, 2022.
Claims priority of application No. 2021-018442 (JP), filed on Feb. 8, 2021.
Prior Publication US 2024/0301561 A1, Sep. 12, 2024
Int. Cl. H01G 9/052 (2006.01); B22F 3/10 (2006.01); B22F 3/24 (2006.01); C23C 24/10 (2006.01); H01G 9/045 (2006.01)
CPC C23C 24/106 (2013.01) [B22F 3/1007 (2013.01); B22F 3/24 (2013.01); H01G 9/045 (2013.01); H01G 9/0525 (2013.01); B22F 2003/242 (2013.01); B22F 2201/11 (2013.01); B22F 2301/052 (2013.01); B22F 2304/10 (2013.01); B22F 2998/10 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An electrode material for aluminum electrolytic capacitors, comprising a sintered body of at least one powder selected from the group consisting of an aluminum powder and an aluminum alloy powder on at least one surface of an aluminum foil substrate or an aluminum alloy foil substrate,
wherein
(1) the sintered body has a total thickness of 50 to 900 μm,
(2) the powder in the sintered body has a 10% particle size D10 in a number-based particle size distribution of 1.0 to 1.8 μm,
(3) the powder in the sintered body has a 50% particle size D50 in the number-based particle size distribution of 2.0 to 3.5 μm, and
(4) the powder in the sintered body has a 90% particle size D90 in the number-based particle size distribution of 3.8 to 6.0 μm.